Thank you is more formal, proper, polite, elegant, sincere. It really expresses gratitude.
Thanks is more informal and casual. It may be used for something small. It’s more appropriate in casual situations or
with people you know well.
Thanks a lot can also be said.
When the favor is really big or the receiver is very appreciative, "so much" or "very much" is usually added.
Thank you so much or Thank you very much meaning "You've been a huge help. I really appreciate this".
Thanks a lot can also be said.
When the favor is really big or the receiver is very appreciative, "so much" or "very much" is usually added.
Thank you so much or Thank you very much meaning "You've been a huge help. I really appreciate this".
Many thanks is also pefectly proper.
